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HomeCommon ProblemCan I change the card directly without shutting down the phone?

Hot Swap refers to the insertion and removal of modules and boards into or out of the system without affecting the normal operation of the system without turning off the system power, thereby improving the system's reliability. Reliability, rapid repairability, redundancy and timely recovery from disasters, etc.

Can I change the card directly without shutting down the phone?

Supports hot swapping, which means you can change the card without worrying about yourself. (Recommended learning: PHP video tutorial)

Now most Androids and iPhones support this hot swap. This was taken into consideration when designing.

The same is true for memory cards, which support hot swapping. . . Of course, some machines cannot be ruled out, it won’t work. But, you can do this.

However, it is recommended to plug and unplug less. Otherwise, the chip will be easily damaged if it comes into contact with it. If it happens too often.

Hot-plugging or Hot Swap refers to hot-plugging. The hot-plugging function allows users to remove and replace damaged hard drives without shutting down the system or cutting off the power supply. Components such as power supply or board card, thereby improving the system's timely recovery ability, scalability and flexibility from disasters. For example, some disk mirroring systems for high-end applications can provide hot-swappable disk functions. Specifically in academic terms: hot replacement, hot expansion and hot upgrade.

USB Hot-Swap

Hot-swap technology is the key technology to achieve continuous power supply operation and non-stop maintenance. The most effective way to improve the reliability of the power supply system is to perform redundant backup of key components of the power supply equipment, replace the failed power supply and expand the system capacity without interrupting the system operation. Therefore, the hot-swap technology of the power supply is increasingly popular. Come more and more attention. [2]

Hot-swap function is very important in power supply design. In application systems using fault-tolerant power supply architecture, hot-swappable functions are required to meet zero downtime requirements. During the hot-swap process, the hot-swap function must avoid significant fluctuations in voltage and current.

Hot plug first appeared in the server field and was proposed to improve the ease of use of the server. The computers we usually use generally have USB interfaces, which can be hot-swapped. If there is no hot-swappable function, even if the disk damage does not cause data loss, the user still needs to temporarily shut down the system so that the hard disk can be replaced.

With hot-swap technology, you can simply turn on the connection switch or turn the handle to take out the hard drive, and the system can still run normally without interruption.

BTW With the maturity of hot-swap technology, it is currently widely used in mobile phone SIM cards. This enables the SIM card to be ejected when the phone is turned on, and the SIM card is recognized when the phone is turned on. It is extremely convenient. affected people's lives.

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